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CVE-2023-53257 is an out-of-bounds read vulnerability in the Linux kernel mac80211 wireless subsystem's processing of S1G (802.11ah) action frames. The affected code examined an action-code field before validating that the received management frame was large enough to contain that field. A truncated or malformed S1G action frame could therefore cause mac80211 to access data beyond the supplied frame boundary. The upstream fix validates the S1G action-frame length before accessing or evaluating its action code.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel mac80211 Wi-Fi vulnerability involving inadequate validation of S1G action-frame size.
Linux kernel mac80211 Wi-Fi vulnerability involving missing validation of S1G action-frame size.
Linux kernel mac80211 Wi-Fi flaw addressed by checking S1G action-frame size.
A Linux kernel mac80211 Wi-Fi flaw involving insufficient S1G action-frame size validation.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.